add comment on using -B# to split input file for dictionary training

diff --git a/programs/dibio.c b/programs/dibio.c
index 66f7d15264da2b4873eb40a4ed3a3c06bf853898..2cb2a42671a0fdf069f4a968d41983be950bfc1a 100644 (file)
--- a/programs/dibio.c
+++ b/programs/dibio.c
@@ -297,6 +297,7 @@ int DiB_trainFromFiles(const char* dictFileName, unsigned maxDictSize,
     if (fs.nbSamples < 5) {
         DISPLAYLEVEL(2, "!  Warning : nb of samples too low for proper processing ! \n");
         DISPLAYLEVEL(2, "!  Please provide _one file per sample_. \n");
+        DISPLAYLEVEL(2, "!  Alternatively, split files into fixed-size blocks representative of samples, with -B# \n");
         EXM_THROW(14, "nb of samples too low");   /* we now clearly forbid this case */
     }
     if (fs.totalSizeToLoad < (unsigned long long)(8 * maxDictSize)) {